tires and inner tube sizes..

[scotty110788]

i got my new tires the other day and also some new inner tubes, aint been on my bike lately so never realised till i was cleaning it up this morning, new tires are 700 x 23 while old ones are 700 x 28, was the kid in the shop who got them for me and he knew sizes etc.. my new inner tubes are continental 700 x 28/37 or something, are these to big or can i get away with them?
I'm assuming the 23 means they'll be skinnier so better speed?

 

[Rickshaw Phil]

Yes 700x23 is skinnier and likely faster but before fitting check that they are compatible with your wheel rim width. Sheldon has a chart (approx 3/4 of the way down the page) which should help.

Having recently had an oversized tube fail on me (it split where it had creased inside the tyre) I personally would change the tubes for the correct size for the tyres.

 

[scotty110788]

bah thanks m8, its 1 block off from fitting on the chart , dont think i have receipt but tires aint been on the road so time to get my blagging head on

 

[Rickshaw Phil]

bah thanks m8, its 1 block off from fitting on the chart , dont think i have receipt but tires aint been on the road so time to get my blagging head on

That's a bit of a pain. I hope the shop'll be decent about it.